Best Antivirus Options for a Mailserver? 91
CSIP asks: "I am setting up a small mailserver, with ~500 users, across 80 domains. I'm planning to use qmail-scanner and an antivirus scanner to block incoming viruses. I would prefer to use ClamAV, however I've read conflicting reports on its effectiveness. The commercial scanners appear to detect 99.X% however they are licensed per-user, which at 500+ users becomes quite the annual bill.
What is everyone's experience with ClamAV? Are their other commercial scanners that allow you to license on a per-server basis?" The best indicator of quality for a virus scanner is the information in its virus database. How do ClamAV's virus definitions compare to commercial scanners, like McAfee's?
You'd be better off... (Score:3, Informative)
Most viruses spread so quickly that the AV tools' databases are inevitably out of date and ineffective.
ClamAV vs. Commercial (Score:5, Informative)
To paraphrase, ClamAV's database is generally at least a few days ahead of sophos and sometimes weeks...
ClamAV was written from the ground-up to do mail scanning, so it should be better than commercial scanners that try to be everything to everyone...
Works well with qmail-scanner (thumbs up) (Score:2, Informative)
Re:Clam (Score:3, Informative)
Re:Mostly works. (Score:2, Informative)
Using both Clam and Sophos.. (Score:3, Informative)
I tend to find Clam updates faster, but Sophos's updates need less corrections..
I glue them together with MailScanner (www.mailscanner.info) which also allows men to pop in SpamAssassin to the mix.
On the desktop I use Norton's AV solution so give me a third layer of defence..
Belt and braces.....